横向
1
Hottest planet in solar system
2
Reddish electrical conductor
4
Substance with pH above 7
5
Gas essential for breathing
纵向
2
Solid with repeating atomic pattern
3
Mass per unit volume
6
Second lightest element
7
Precious yellow metallic element
Hottest planet in solar system
Reddish electrical conductor
Substance with pH above 7
Gas essential for breathing
Solid with repeating atomic pattern
Mass per unit volume
Second lightest element
Precious yellow metallic element